Fire a signal when the transport channel state changes

webrtc/p2p/base/transportcontroller.cc

 /*
  *  Copyright 2015 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 159 matching lines @@
   channel->SignalReceivingState.connect(
       this, &TransportController::OnChannelReceivingState_n);
   channel->SignalGatheringState.connect(
       this, &TransportController::OnChannelGatheringState_n);
   channel->SignalCandidateGathered.connect(
       this, &TransportController::OnChannelCandidateGathered_n);
   channel->SignalCandidatesRemoved.connect(
       this, &TransportController::OnChannelCandidatesRemoved_n);
   channel->SignalRoleConflict.connect(
       this, &TransportController::OnChannelRoleConflict_n);
-  channel->SignalConnectionRemoved.connect(
-      this, &TransportController::OnChannelConnectionRemoved_n);
+  channel->SignalStateChanged.connect(
+      this, &TransportController::OnChannelStateChanged_n);
   channels_.insert(channels_.end(), RefCountedChannel(channel))->AddRef();
   // Adding a channel could cause aggregate state to change.
   UpdateAggregateStates_n();
   return channel;
 }
 
 void TransportController::DestroyTransportChannel_n(
     const std::string& transport_name,
     int component) {
   RTC_DCHECK(network_thread_->IsCurrent());
@@ skipping 393 matching lines @@
 
   ice_role_switch_ = true;
   IceRole reversed_role = (ice_role_ == ICEROLE_CONTROLLING)
                               ? ICEROLE_CONTROLLED
                               : ICEROLE_CONTROLLING;
   for (const auto& kv : transports_) {
     kv.second->SetIceRole(reversed_role);
   }
 }
 
-void TransportController::OnChannelConnectionRemoved_n(
+void TransportController::OnChannelStateChanged_n(
     TransportChannelImpl* channel) {
   RTC_DCHECK(network_thread_->IsCurrent());
   LOG(LS_INFO) << channel->transport_name() << " TransportChannel "
                << channel->component()
-               << " connection removed. Check if state is complete.";
+               << " state changed. Check if state is complete.";
   UpdateAggregateStates_n();
 }
 
 void TransportController::UpdateAggregateStates_n() {
   RTC_DCHECK(network_thread_->IsCurrent());
 
   IceConnectionState new_connection_state = kIceConnectionConnecting;
   IceGatheringState new_gathering_state = kIceGatheringNew;
   bool any_receiving = false;
   bool any_failed = false;
@@ skipping 44 matching lines @@
   }
   if (gathering_state_ != new_gathering_state) {
     gathering_state_ = new_gathering_state;
     signaling_thread_->Post(
         this, MSG_ICEGATHERINGSTATE,
         new rtc::TypedMessageData<IceGatheringState>(new_gathering_state));
   }
 }
 
 }  // namespace cricket